<template>
  <div class="table">
    <div class="crumbs">
      <i class="el-icon-tickets">歌单信息</i>
    </div>
    <div class="container">
      <div class="handle-box">
        <el-button type="primary" size="mini" @click="delAll">批量删除</el-button>
        <el-input v-model="select_word" size="mini" placeholder="请输入歌曲名" class="handle-input"/>
        <el-button type="primary" size="mini" @click="centerDialogVisible = true">添加歌曲</el-button>
      </div>
    </div>
    <el-table size="mini" border style="width: 100%" :data="tableData" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="40px"></el-table-column>

      <el-table-column prop="name" label="歌手-歌名"  align="center"/>

      <el-table-column label="操作" width="150px" align="center">
        <template slot-scope="scope">
          <el-button size="mini" type="danger" @click="handleDelete(scope.row.id)">
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <el-dialog title="添加歌曲" :visible.sync="centerDialogVisible" width="400px" center>
      <el-form :model="registerForm" ref="registerForm" label-width="80px" action="" id="tf">
        <el-form-item prop="singerName" label="歌手名字" size="mini">
          <el-input v-model="registerForm.singerName" placeholder="歌手名字"></el-input>
        </el-form-item>
        <el-form-item prop="songName" label="歌曲名字" size="mini">
          <el-input v-model="registerForm.songName" placeholder="歌曲名字"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button size="mini" @click="getSongId">
          确定
        </el-button>
        <el-button size="mini" @click="centerDialogVisible = false">
          取消
        </el-button>
    </span>
    </el-dialog>

    <el-dialog title="删除歌曲" :visible.sync="delVisible" width="300px" center>
      <div align="center">
        删除不可恢复，是否确定删除
      </div>
      <span slot="footer">
        <el-button size="mini" @click="deleteRow">
          确定
        </el-button>
        <el-button size="mini" @click="delVisible = false">
          取消
        </el-button>
    </span>
    </el-dialog>
  </div>
</template>

<script>
import {mixin} from '../mixins/index'
import {ListSongById, searchSongId, songOfSongName, listSongAdd, delListSong} from '../api/index'

export default {
  mixins: [mixin],
  // name: 'songPage',
  name: 'ListSong',

  data () {
    return {
      // 添加弹窗
      centerDialogVisible: false,
      delVisible: false,
      registerForm: {
        singerName: '',
        songName: ''
      },
      tableData: [],
      tempData: [],
      select_word: '',
      // 当前选择项
      idx: '',
      // 哪些项已经打勾
      multipleSelection: [],
      songListId: ''
    }
  },
  watch: {
    select_word: function() {
      if (this.select_word === '') {
        this.tableData = this.tempData
      } else {
        this.tableData = []
        for (let item of this.tempData) {
          if (item.name.includes(this.select_word)) {
            this.tableData.push(item)
          }
        }
      }
    }
  },
  created () {
    this.songListId = this.$route.query.id
    this.getData()
  },
  methods: {
    getData() {
      this.tempData = []
      this.tableData = []
      ListSongById(this.songListId).then(res => {
        for (let item of res.data) {
          this.getSong(item.songId)
        }
      })
    },
    getSong(id) {
      searchSongId(id).then(res => {
        this.tempData.push(res.data)
        this.tableData.push(res.data)
      }).catch(err => {
        console.log(err)
      })
    },
    // TODO 必须提前知道歌手-歌曲才能添加
    getSongId() {
      let _this = this
      var songOfName = _this.registerForm.singerName + '-' + _this.registerForm.songName
      songOfSongName(songOfName).then(res => {
        console.log(res.data)
        this.addSong(res.data[0].id)
      })
    },
    addSong (songId) {
      let _this = this
      // let params = {
      //   'songId': songId,
      //   'songListId': this.songListId
      // }
      listSongAdd(songId, this.songListId).then(res => {
        console.log(res)
        if (res.code === 200) {
          this.getData()
          this.$message.success('添加成功')
          this.form = ''
        } else {
          this.$message.error('添加失败')
        }
      })
      _this.centerDialogVisible = false
      this.timer = setTimeout(() => { // 设置延迟执行
        this.getData()
      }, 1000)
      // this.getData()
    },
    deleteRow() {
      delListSong(this.idx, this.songListId).then(res => {
        if (res.code === 200) {
          this.getData()
          this.$message.success('删除成功')
        } else {
          this.$message.error('删除失败')
        }
      })
      this.delVisible = false
    }
  }
}
</script>

<style scoped>
  .handle-box {
    margin-bottom: 20px;
  }
  .song-img{
    width: 100%;
    height: 80px;
    border-radius: 5px;
    margin-bottom: 5px;
    overflow: hidden;
  }
  .handle-input{
    width: 300px;
    display: inline-block;
  }
  .pagination{
    display: flex;
    justify-content: center;
  }
  .play{
    position: absolute;
    z-index: 100;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    top: 18px;
    left: 15px;
  }
  .icon{
    width: 2em;
    height: 2em;
    color: white;
    fill: currentColor;
    overflow: hidden;
  }
</style>
